A weft insertion water pump device for a water jet loom

Abstract

This utility model discloses a weft insertion water pump device for a water-jet loom, belonging to the field of textile equipment technology. It includes a wall panel, a swing rod, a connecting rod, an eccentric adjusting block, a transmission seat, a drive shaft, and a weft insertion water pump assembly. The eccentric adjusting block includes an adjusting plate, one side of which is vertically fixed with a cylindrical protrusion. The cylindrical protrusion has an elongated through-hole penetrating the adjusting plate, the narrow inner diameter of which is larger than the outer diameter of the drive shaft. The cylindrical protrusion is interference-fitted into the inner ring of the first connecting rod bearing. The transmission seat includes a transmission plate mounted on the adjusting plate, and its relative position to the adjusting plate can be adjusted along the length of the elongated through-hole. The transmission plate has a drive shaft locking structure. The drive shaft passes through the elongated through-hole and is eccentrically arranged with the first connecting rod bearing, and is fixedly connected to the transmission plate through the drive shaft locking structure. This simple operation allows for adjustment of the water pump's spray volume, greatly improving work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of textile equipment technology, and more specifically, to a weft insertion water pump device for a water jet loom. Background Technology

[0002] In the weaving process of a water jet loom, a high-pressure water jet is sprayed by a water pump to guide the weft yarn through the shed, thus achieving weft insertion. The weft insertion mechanism is an important component of the water jet loom. Existing weft insertion mechanisms include a water pump, equipped with a spring and a cam to drive the pump. The water pressure and volume sprayed by the pump are constant and cannot be controlled. However, in actual production, the water pressure needs to be adjusted due to changes in the fabric. The usual practice is to replace the matching spring, plunger, and cam when changing the weft yarn to match the water pressure, which is very inconvenient and inefficient.

[0003] Therefore, it is necessary to improve the existing technology. Utility Model Content

[0004] The purpose of this utility model is to provide a weft insertion water pump device for a water jet loom, aiming to solve at least one of the technical problems existing in the prior art. To achieve the above objective, the technical solution adopted is as follows: A weft insertion water pump device for a water jet loom includes a wall panel, a swing rod, a connecting rod, an eccentric adjusting block, a transmission seat, a drive shaft, and a weft insertion water pump assembly. A rocker arm shaft is vertically fixedly installed on the wall panel. The rocker arm includes a bushing. The outer wall of the bushing is provided with a first connector and a second connector at intervals along the circumference. The bushing is rotatably mounted on the rocker arm shaft through a first rocker arm bearing. The connecting rod includes a connecting rod body, a first bearing hole at the first end of the connecting rod body, a first connecting rod bearing installed in the first bearing hole, and a second end of the connecting rod body rotatably connected to a first connecting member. The eccentric adjustment block includes an adjustment plate. A cylindrical protrusion is vertically fixed on one side of the adjustment plate. The cylindrical protrusion has an elongated through hole that penetrates the adjustment plate. The narrow inner diameter of the elongated through hole is larger than the outer diameter of the drive shaft. The cylindrical protrusion is interference-fitted into the inner ring of the first connecting rod bearing. The transmission base includes a transmission plate, which is mounted on an adjustment plate and can adjust the relative position between the transmission plate and the adjustment plate along the length of the elongated through hole. The transmission plate is provided with a drive shaft locking structure. The drive shaft passes through the elongated through hole and is eccentrically arranged with the first connecting rod bearing. It is fixedly connected to the transmission plate through the drive shaft locking structure. The weft insertion pump assembly includes a pump body, a linear bearing housing, a linear bearing, and a plunger guide rod. The pump body is fixedly mounted on a wall panel, the linear bearing housing is also fixedly mounted on the wall panel, the linear bearing is mounted on the linear bearing housing, and the plunger guide rod is mounted on the linear bearing. The first end of the plunger guide rod is fixedly connected to the plunger of the pump body, and the second end of the plunger guide rod is rotatably connected to the second connecting piece through a hinge assembly.

[0005] Preferably, the first connector includes two relatively parallel first connecting plates, each of which is provided with a shaft hole; The second end of the connecting rod body is provided with a second bearing hole, and a second connecting rod bearing is installed in the second bearing hole. The first connecting rod bearing pin is interference-fitted into the inner ring of the second connecting rod bearing. One end of the first connecting rod bearing pin passes through a shaft hole on a first connecting plate and is fastened with a fastening nut. The other end of the first connecting rod bearing pin passes through a shaft hole on another first connecting plate and is fastened with a fastening nut.

[0006] Preferably, the diameter of the first bearing hole is larger than the diameter of the second bearing hole.

[0007] Preferably, the transmission plate is provided with at least two elongated oblong adjustment through holes, each elongated oblong adjustment through hole is arranged parallel to the elongated oblong adjustment through hole, the adjustment plate is provided with threaded holes that are the same number as the elongated oblong adjustment through holes and correspond one-to-one, and each set of corresponding elongated oblong adjustment through holes and threaded holes is fitted with an adjustment bolt.

[0008] Preferably, the drive shaft locking structure includes a locking bushing, which is vertically fixedly installed on the transmission plate and penetrates the transmission plate. The side wall of the locking bushing has a notch that penetrates the transmission plate. Locking lugs are provided on the locking bushing on both sides of the notch. Each locking lug has a locking through hole and is fitted with a locking bolt and a locking nut. The drive shaft can extend into the locking bushing, and through the locking bolts passing through the two locking through holes in sequence, and locked with the locking nut, the drive shaft and the transmission plate are fixedly connected.

[0009] Preferably, the second connecting member includes a second connecting plate, the second connecting plate is provided with a third bearing hole, and a second rocker arm bearing is assembled in the third bearing hole; The hinge assembly includes two third connecting plates arranged in parallel with each other. Each third connecting plate has a shaft hole at both ends. The second connecting rod bearing pin is interference-fitted into the inner ring of the second rocker arm bearing. One end of the second connecting rod bearing pin passes through the shaft hole at the first end of one of the third connecting plates and is fastened with a fastening nut. The other end of the second connecting rod bearing pin passes through the shaft hole at the first end of the other third connecting plate and is fastened with a fastening nut. The second end of the plunger guide rod is provided with a fourth bearing hole, and a third rocker arm bearing is assembled in the fourth bearing hole. The third connecting rod bearing pin is interference-fitted into the inner ring of the third rocker arm bearing. One end of the third connecting rod bearing pin passes through the shaft hole at the second end of a third connecting plate and is fastened with a fastening nut. The other end of the third connecting rod bearing pin passes through the shaft hole at the second end of another third connecting plate and is fastened with a fastening nut.

[0010] Preferably, the device further includes a fixed plate, and the drive shaft is mounted on the fixed plate via a drive bearing.

[0011] Preferably, a drive gear is fixedly mounted on the drive shaft.

[0012] Compared with the prior art, the present invention has the following beneficial effects: This utility model discloses a weft insertion water pump device for a water jet loom. The drive structure of the water pump body is redesigned, and the water spray volume of the water pump body can be adjusted without complicated disassembly or replacement procedures. The water spray volume of the water pump body can be adjusted through the above simple operation, which is simple to operate and greatly improves work efficiency. Attached Figure Description

[0013] To more clearly illustrate the technical solution of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of the device of this utility model.

[0015] Figure 2 This is an exploded view of the device of this utility model, wherein the fixing plate is not shown in the view.

[0016] Figure 3 This is a schematic diagram of the swing arm structure of this utility model.

[0017] Figure 4 This is a schematic diagram of the connecting rod structure of this utility model.

[0018] Figure 5 This is a front view of the eccentric adjustment block of this utility model.

[0019] Figure 6 This is a rear view of the eccentric adjustment block of this utility model.

[0020] Figure 7 This is a schematic diagram of the transmission seat structure of this utility model.

[0021] In the diagram: 1. Wall panel; 2. Rocker arm; 3. Connecting rod; 4. Eccentric adjusting block; 5. Transmission seat; 6. Fixing plate; 7. Drive shaft; 8. Rocker arm shaft; 9. Bushing; 10. First rocker arm bearing; 11. Connecting rod body; 12. First bearing hole; 13. First connecting rod bearing; 14. Second bearing hole; 15. Second connecting rod bearing; 16. Adjusting plate; 17. Cylindrical protrusion; 18. Oblong through hole; A. Narrow inner diameter; B. Wide inner diameter; 19. Transmission plate; 20. Oblong adjusting through hole; 21. Threaded hole; 22. Adjusting bolt; 23. Locking bushing; 24. Notch; 25. Locking lug; 26. Locking through hole; 27. Locking bolt; 28. Drive bearing; 29. ​​Drive gear; 30. First connecting plate; 31. First connecting rod bearing pin; 32. Water pump body; 33. Linear bearing seat; 34. Linear bearing; 35. Plunger guide rod; 36. Water pump seat; 37. Plunger; 38. Second connecting plate; 39. Third bearing hole; 40. Second rocker arm bearing; 41. Third connecting plate; 42. Second connecting rod bearing pin; 43. Fourth bearing hole; 44. Third rocker arm bearing; 45. Third connecting rod bearing pin. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] A preferred embodiment of this utility model provides a weft insertion water pump device for a water jet loom, such as... Figures 1-2 As shown, the device includes a wall panel 1, a swing rod 2, a connecting rod 3, an eccentric adjusting block 4, a transmission seat 5, a fixing plate 6, a drive shaft 7, and a weft insertion pump assembly.

[0025] The wall panel 1 is fixedly installed on the frame of the water jet loom, and the swing arm shaft 8 is vertically fixed on the wall panel 1 by swing arm bolts.

[0026] like Figure 3 As shown, the rocker arm 2 includes a bushing 9. The outer wall of the bushing 9 is provided with a first connector and a second connector at intervals along the circumference. A first rocker arm bearing 10 is assembled inside the bushing 9. The inner ring of the first rocker arm bearing 10 is fitted on the rocker arm shaft 8 and is interference-fitted with the rocker arm shaft 8.

[0027] like Figure 4 As shown, the connecting rod 3 includes a connecting rod body 11. The first end of the connecting rod body 11 is provided with a first bearing hole 12, and a first connecting rod bearing 13 is installed in the first bearing hole 12. The second end of the connecting rod body 11 is provided with a second bearing hole 14, and a second connecting rod bearing 15 is installed in the second bearing hole 14. The diameter of the first bearing hole 12 is larger than the diameter of the second bearing hole 14.

[0028] like Figures 5-6 As shown, the eccentric adjustment block 4 is an integral structure, specifically including an adjustment plate 16. A cylindrical protrusion 17 is vertically fixed on one side of the adjustment plate 16. An elongated through hole 18 is provided on the cylindrical protrusion 17, which penetrates the adjustment plate. The narrow inner diameter A of the elongated through hole 18 is larger than the outer diameter of the drive shaft 7, and the wide inner diameter B of the elongated through hole 18 is about twice the outer diameter of the drive shaft 7. The cylindrical protrusion 17 is interference-fitted into the inner ring of the first connecting rod bearing 13.

[0029] like Figure 7 As shown, the transmission base 5 is an integral structure, specifically including a transmission plate 19 and a drive shaft locking structure. The transmission plate 19 is mounted on the adjusting plate 16. Specifically, the transmission plate 19 is provided with four elongated oval adjusting through holes 20, which are arranged in a square shape, i.e., at the four corners of the transmission plate 19. Further, each elongated oval adjusting through hole 20 is arranged parallel to an elongated oval through hole 18. In addition, the adjusting plate 16 is provided with threaded holes 21, which are the same number as the elongated oval adjusting through holes 20 and correspond one-to-one. Each set of corresponding elongated oval adjusting through holes 20 and threaded holes 21 is fitted with an adjusting bolt 22, i.e., the adjusting bolt 22 passes through the elongated oval adjusting through hole 20 and is threadedly connected to the corresponding threaded hole 21, thereby achieving a fixed connection between the transmission plate 19 and the adjusting plate 16.

[0030] Based on the above setup, by loosening the four adjusting bolts 22, the relative installation position between the transmission plate 19 and the adjusting plate 16 can be adjusted along the length of the elongated through hole 18.

[0031] The drive shaft locking structure includes a locking bushing 23, which is vertically fixed on the transmission plate 19 and passes through the transmission plate 19. The side wall of the locking bushing 23 has a notch 24 that passes through the transmission plate 19. Locking lugs 25 are provided on the locking bushing 23 on both sides of the notch 24. Each locking lug 25 has a locking through hole 26 and is fitted with a locking bolt 27 and a locking nut (not shown in the figure).

[0032] The fixed plate 6 is fixedly installed on the frame of the water jet loom. The drive shaft 7 is installed on the fixed plate 6 through the drive bearing 28. The drive gear 29 is fixedly mounted on the drive shaft 7. The power output device of the water jet loom drives the drive gear 29 to rotate through belt, chain or gear meshing, thereby driving the drive shaft 7 to rotate.

[0033] The drive shaft 7 passes through the elongated through hole 18 and is eccentrically arranged with the first connecting rod bearing 13. Then it passes through the locking bushing 23 and is secured by the locking bolt 27 through the two locking through holes 26 and the locking nut, so that the locking bushing 23 holds the drive shaft 7, thereby achieving a fixed connection between the drive shaft 7 and the transmission plate 19.

[0034] The second end of the connecting rod body 11 is rotatably connected to the first connecting member via the second connecting rod bearing 15. Specifically, the first connecting member includes two relatively parallel first connecting plates 30, each of which has a shaft hole. The first connecting rod bearing pin 31 is interference-fitted into the inner ring of the second connecting rod bearing 15, with one end of the first connecting rod bearing pin 31 passing through the shaft hole on one of the first connecting plates 30 and being fastened with a fastening nut, and the other end of the first connecting rod bearing pin 31 passing through the shaft hole on the other first connecting plate 30 and being fastened with a fastening nut.

[0035] The weft-guiding water pump assembly includes a pump body 32, a linear bearing housing 33, a linear bearing 34, and a plunger guide rod 35. The pump body 32 is fixedly mounted on the wall panel 1 via a pump seat 36. The linear bearing housing 33 is fixedly mounted on the pump seat 36. The linear bearing 34 is mounted on the linear bearing housing 33. The plunger guide rod 35 is mounted on the linear bearing 34, and its first end is fixedly connected to the plunger 37 of the pump body 32. The linear reciprocating motion of the plunger guide rod 35 along the linear bearing 34 enables the pump body 32 to spray water.

[0036] The second end of the plunger guide rod 35 is rotatably connected to the second connector via a hinge assembly. Specifically, the second connector includes a second connecting plate 38, on which a third bearing hole 39 is provided, and a second rocker arm bearing 40 is assembled.

[0037] The hinge assembly includes two third connecting plates 41 arranged in parallel with each other. Each third connecting plate 41 has a shaft hole at both ends. The second connecting rod bearing pin 42 is interference-fitted into the inner ring of the second rocker arm bearing 40. One end of the second connecting rod bearing pin 42 passes through the shaft hole at the first end of one of the third connecting plates 41 and is fastened with a fastening nut. The other end of the second connecting rod bearing pin 42 passes through the shaft hole at the first end of the other third connecting plate 41 and is fastened with a fastening nut.

[0038] The second end of the plunger guide rod 35 is provided with a fourth bearing hole 43. A third rocker arm bearing 44 is assembled in the fourth bearing hole 43. A third connecting rod bearing pin 45 is interference-fitted into the inner ring of the third rocker arm bearing 44. One end of the third connecting rod bearing pin 45 passes through the shaft hole at the second end on a third connecting plate 41 and is fastened with a fastening nut. The other end of the third connecting rod bearing pin 45 passes through the shaft hole at the second end on another third connecting plate 41 and is fastened with a fastening nut.

[0039] The working process of the device in this embodiment will be described as follows: The drive shaft 7 rotates, causing the transmission seat 5 and the eccentric adjustment block 4 to rotate synchronously. Because the drive shaft 7 and the first connecting rod bearing 13 are eccentrically arranged, the connecting rod 3 moves back and forth, which in turn causes the rocker arm 2 to rotate back and forth about the rocker arm shaft 8, thereby driving the plunger guide rod 35 to move linearly along the linear bearing 34, and finally driving the water pump body 32 to work, thus realizing water spraying.

[0040] The core innovation of this embodiment is that when the four adjusting bolts 22 are loosened, the position of the eccentric adjusting block 4 can be adjusted along the length of the elongated through hole 18. During the adjustment process, the connecting rod 3 and the swing rod 2 make adaptive movements to adjust the degree of eccentricity between the drive shaft 7 and the first connecting rod bearing 13, thereby adjusting the stroke of the plunger guide rod 35 in linear reciprocating motion, and finally adjusting the water spray volume of the water pump body 32.

[0041] In this embodiment, the drive structure of the water pump body is redesigned. Adjusting the water spray volume of the water pump body does not require complicated disassembly or replacement procedures. The water spray volume of the water pump body can be adjusted through the above simple operation, which is simple to operate and greatly improves work efficiency.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A weft insertion water pump device for a water jet loom, characterized in that, Includes wall panels, swing rods, connecting rods, eccentric adjustment blocks, transmission seats, drive shafts, and weft insertion pump assemblies; A rocker arm shaft is vertically fixedly installed on the wall panel. The rocker arm includes a bushing. The outer wall of the bushing is provided with a first connector and a second connector at intervals along the circumference. The bushing is rotatably mounted on the rocker arm shaft through a first rocker arm bearing. The connecting rod includes a connecting rod body, a first bearing hole at the first end of the connecting rod body, a first connecting rod bearing installed in the first bearing hole, and a second end of the connecting rod body rotatably connected to a first connecting member. The eccentric adjustment block includes an adjustment plate. A cylindrical protrusion is vertically fixed on one side of the adjustment plate. The cylindrical protrusion has an elongated through hole that penetrates the adjustment plate. The narrow inner diameter of the elongated through hole is larger than the outer diameter of the drive shaft. The cylindrical protrusion is interference-fitted into the inner ring of the first connecting rod bearing. The transmission base includes a transmission plate, which is mounted on an adjustment plate and can adjust the relative position between the transmission plate and the adjustment plate along the length of the elongated through hole. The transmission plate is provided with a drive shaft locking structure. The drive shaft passes through the elongated through hole and is eccentrically arranged with the first connecting rod bearing. It is fixedly connected to the transmission plate through the drive shaft locking structure. The weft insertion pump assembly includes a pump body, a linear bearing housing, a linear bearing, and a plunger guide rod. The pump body is fixedly mounted on a wall panel, the linear bearing housing is also fixedly mounted on the wall panel, the linear bearing is mounted on the linear bearing housing, and the plunger guide rod is mounted on the linear bearing. The first end of the plunger guide rod is fixedly connected to the plunger of the pump body, and the second end of the plunger guide rod is rotatably connected to the second connecting piece through a hinge assembly.

2. The weft insertion water pump device for a water jet loom according to claim 1, characterized in that, The first connector includes two parallel first connecting plates, each of which has a shaft hole. The second end of the connecting rod body is provided with a second bearing hole, and a second connecting rod bearing is installed in the second bearing hole. The first connecting rod bearing pin is interference-fitted into the inner ring of the second connecting rod bearing. One end of the first connecting rod bearing pin passes through a shaft hole on a first connecting plate and is fastened with a fastening nut. The other end of the first connecting rod bearing pin passes through a shaft hole on another first connecting plate and is fastened with a fastening nut.

3. A weft insertion water pump device for a water jet loom according to claim 2, characterized in that, The diameter of the first bearing hole is larger than that of the second bearing hole.

4. A weft insertion water pump device for a water jet loom according to claim 1, characterized in that, The transmission plate is provided with at least two elongated oval adjustment through holes, each elongated oval adjustment through hole is arranged in parallel with the elongated oval through hole, and the adjustment plate is provided with threaded holes that are the same number as the elongated oval adjustment through holes and correspond one-to-one, and each set of corresponding elongated oval adjustment through holes and threaded holes is fitted with an adjustment bolt.

5. A weft insertion water pump device for a water jet loom according to claim 1, characterized in that, The drive shaft locking structure includes a locking bushing, which is vertically fixedly installed on the transmission plate and penetrates the transmission plate. The side wall of the locking bushing has a notch that penetrates the transmission plate. Locking lugs are provided on the locking bushing on both sides of the notch. Each locking lug has a locking through hole and is fitted with a locking bolt and a locking nut. The drive shaft can extend into the locking bushing, and through the locking bolts passing through the two locking through holes in sequence, and locked with the locking nut, the drive shaft and the transmission plate are fixedly connected.

6. A weft insertion water pump device for a water jet loom according to claim 1, characterized in that, The second connector includes a second connecting plate, on which a third bearing hole is provided, and a second rocker arm bearing is assembled in the third bearing hole; The hinge assembly includes two third connecting plates arranged in parallel with each other. Each third connecting plate has a shaft hole at both ends. The second connecting rod bearing pin is interference-fitted into the inner ring of the second rocker arm bearing. One end of the second connecting rod bearing pin passes through the shaft hole at the first end of one of the third connecting plates and is fastened with a fastening nut. The other end of the second connecting rod bearing pin passes through the shaft hole at the first end of the other third connecting plate and is fastened with a fastening nut. The second end of the plunger guide rod is provided with a fourth bearing hole, and a third rocker arm bearing is assembled in the fourth bearing hole. The third connecting rod bearing pin is interference-fitted into the inner ring of the third rocker arm bearing. One end of the third connecting rod bearing pin passes through the shaft hole at the second end of a third connecting plate and is fastened with a fastening nut. The other end of the third connecting rod bearing pin passes through the shaft hole at the second end of another third connecting plate and is fastened with a fastening nut.

7. A weft insertion water pump device for a water jet loom according to claim 1, characterized in that, The device also includes a mounting plate, on which the drive shaft is mounted via a drive bearing.

8. A weft insertion water pump device for a water jet loom according to claim 1, characterized in that, A drive gear is fixedly mounted on the drive shaft.

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